GAI-Tronics ACC2500, User And Installation Manual

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Installation ACC2500 Audio Control Center
09/08 22
Table 1. Backup Data Terminations using XRC0001A
Signal Relay Board J701
Primary RXD 23
Primary TXD 20
Backup RXD 21
Backup TXD 18
Primary GND 24
Backup GND 24
12612 pin 2 19
12612 pin 7 22
12612 pin 8 24
Mechanical Receipt Inspection
The desk sets are shipped in a cardboard container with inserts. Thoroughly inspect it as soon as possible
after delivery. In-transit damage should be immediately reported to the transportation company.
Mounting
The desk sets can be placed on a desk or mounted vertically on a wall. To wall mount the desk set, remove
the four bottom screws from the base and then rotate the base 180
°
. Reinstall the four screws to the base
and rotate the handset hook located on the front of the unit.
N
OTE
: Certain configurations restrict wall mounting.
FCC Interference Warnings
The FCC requires that manuals pertaining to Class A and Class B computing devices contain warnings
about possible interference with local and residential radio and TV reception. Please read these warnings
and all safety information in the Foreword section of this manual.
Electrostatic Discharge (ESD) Protection
The ACC2500 have ESD protection circuitry that provides a high degree of protection against ESD, and
power and telephone line surges. The circuitry shunts the transient currents to earth ground through the
ground terminal. One of the two screws located on the back of the desk set can be used as an earth ground
terminal. See the rear view of the desk set for the ground screw terminal locations.
The ground terminal must be connected to a high quality earth ground point to obtain maximum protection.
Ideally, the ground point should originate at a 1/2-inch copper rod driven at least six feet into the soil with a
No. 16 AWG (or larger) copper wire run to the ground terminal taking the shortest path possible. Where
this is not possible, ground to a nearby water pipe or best available ground.